Finding the Fourth Proportional to 1,086.10, 1,498.95 and 713.39

Step by Step Solution

1. Step 1: Write the proportion equation
   1,086.10 : 1,498.95 = 713.39 : x
2. Step 2: Convert to fraction form
   1,086.10/1,498.95 = 713.39/x
3. Step 3: Cross multiply
   1,086.10x = 1,498.95 × 713.39
4. Step 4: Simplify right side
   1,086.10x = 1,069,328.45
5. Step 5: Solve for x
   x = 1,069,328.45/1,086.10
6. Step 6: Final answer
   x = 984.56